白炭黑/石墨烯杂化填料对天然橡胶胶料性能的影响  

Effect of Hybrid Filler of Silica/Graphene on Properties of NR Compound

作　　者：谢士诚 王玉超 蔡瑞 曾轶 肖伟 蒋艳峰 姜锡洲 隋永强 车明明 徐旗 汪燕 程凡圣 辛振祥[1] 赵帅 李琳 XIE Shicheng;WANG Yuchao;CAI Rui;ZENG Yi;XIAO Wei;JIANG Yanfeng;JIANG Xizhou;SUI Yongqiang;CHE Mingming;XU Qi;WANG Yan;CHENG Fansheng;XIN Zhenxiang;ZHAO Shuai;LI Lin(Qingdao University of Science and Technology,Qingdao 266042,China;Jihua 3517 Rubber Products Co.,Ltd,Yueyang 414000,China;Prinx Chengshan(Shandong)Tire Co.,Ltd,Rongcheng 264300,China)

机构地区：[1]青岛科技大学高分子科学与工程学院,山东青岛266042 [2]际华三五一七橡胶制品有限公司高分子材料高科产业园,湖南岳阳414000 [3]浦林成山(山东)轮胎有限公司,山东荣成264300

出　　处：《橡胶工业》2022年第8期563-571,共9页China Rubber Industry

基　　金：国家自然科学基金资助项目(51603111和51703111);山东省自然科学基金资助项目(ZR2021ME107);中国博士后科学基金资助项目(2021M700553和2020M672014)。

摘　　要：通过硅烷偶联剂KH550改性白炭黑与助分散剂TA修饰石墨烯发生迈克尔加成反应形成强杂化键得到白炭黑/石墨烯杂化填料,研究不同用量偶联剂KH550改性的白炭黑/助分散剂TA修饰的石墨烯杂化填料在天然橡胶(NR)胶料中的分散性和对NR胶料性能的影响。结果表明,与未使用偶联剂KH550的NR硫化胶相比,用量为2份的偶联剂KH550改性的白炭黑/助分散剂TA修饰的石墨烯杂化填料的NR硫化胶的拉伸强度最大(27.8 MPa)、压缩生热最低、玻璃化温度最低(-37.06℃)、热导率最大(在30和150℃下的热导率分别为0.168和0.184 W·m^(-1)·K^(-1)),硫化胶中白炭黑的聚集明显减少,硫化胶的综合性能最佳。The hybrid filler of silica/graphene was obtained by Michael addition reaction between silane coupling agent KH550 modified silica and co-dispersant TA modified graphene to form strong hybrid bonds.The dispersibility of the hybrid filler with different amount coupling agent KH550 modified silica/codispersant TA modified graphene in natural rubber(NR)compound and its effect on the properties of NR compound were studied.The results showed that,compared with the NR vulcanizate without coupling agent KH550,the tensile strength of the NR vulcanizate with the hybrid filler in which silica was modified by 2 phr coupling agent KH550 was the highest(27.8 MPa),the compression heat build-up was the lowest,the glass transition temperature was the lowest(-37.06℃),the thermal conductivity was the highest(the thermal conductivity at 30 and 150℃were 0.168 and 0.184 W·m^(-1)·K^(-1),respectively),the aggregation of silica in the vulcanizate was obviously reduced,and the comprehensive performance of the vulcanizate was the best.

关 键 词：天然橡胶 石墨烯 白炭黑 杂化填料 硅烷偶联剂 助分散剂 热导率 

分 类 号：TQ332.6[化学工程—橡胶工业] TQ330.383